Named gradient · uiGradients

Bighead

Bighead is a red gradient from uiGradients (MIT) — #c94b4b → #4b134f at 90°. Shown here interpolated in OKLab, next to the original sRGB, with the worst-case contrast for white and black text and every export.

Aa — the quick brown fox
white text · worst 4.57:1 · AA
white 4.57 AAblack 1.50 failsbanding medium

Same stops, three spaces

The source renders this in sRGB. The number is how much chroma survives at the dullest point along the line — the difference between the first bar and the others is the grey that OKLab removes.

sRGB83%
OKLab81%
OKLCH84%

Report

  • white ink: worst 4.57:1 at 0% (AA); black ink: worst 1.50:1 at 100% (fails AA) → use white text.
  • Banding medium: ~11px bands at 1440px — add grain 24 (≈2% soft-light noise) or shorten the ramp.

Export

css
.gradient {
  background-image: linear-gradient(90deg, #c94b4b 0%, #bf474d 7.14%, #b6444e 14.29%, #ac4050 21.43%, #a23d50 28.57%, #993951 35.71%, #903552 42.86%, #873152 50%, #7e2d52 57.14%, #752a52 64.29%, #6c2552 71.43%, #642151 78.57%, #5b1d51 85.71%, #531850 92.86%, #4b134f 100%);
  background-image: linear-gradient(90deg in oklab, #c94b4b 0%, #4b134f 100%);
}
tailwind v4
bg-linear-to-r/oklab from-[#c94b4b] to-[#4b134f]
svg
<svg xmlns="http://www.w3.org/2000/svg" width="1440" height="600" viewBox="0 0 1440 600"><defs><linearGradient id="bs-gradient" gradientUnits="userSpaceOnUse" x1="0" y1="300" x2="1440" y2="300"><stop offset="0%" stop-color="#c94b4b"/><stop offset="7.14%" stop-color="#bf474d"/><stop offset="14.29%" stop-color="#b6444e"/><stop offset="21.43%" stop-color="#ac4050"/><stop offset="28.57%" stop-color="#a23d50"/><stop offset="35.71%" stop-color="#993951"/><stop offset="42.86%" stop-color="#903552"/><stop offset="50%" stop-color="#873152"/><stop offset="57.14%" stop-color="#7e2d52"/><stop offset="64.29%" stop-color="#752a52"/><stop offset="71.43%" stop-color="#6c2552"/><stop offset="78.57%" stop-color="#642151"/><stop offset="85.71%" stop-color="#5b1d51"/><stop offset="92.86%" stop-color="#531850"/><stop offset="100%" stop-color="#4b134f"/></linearGradient></defs><rect width="1440" height="600" fill="url(#bs-gradient)"/></svg>
dtcg
{
  "bighead": {
    "$type": "gradient",
    "$value": [
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.788,
            0.294,
            0.294
          ],
          "hex": "#c94b4b"
        },
        "position": 0
      },
      {
        "color": {
          "colorSpace": "srgb",
          "components": [
            0.294,
            0.075,
            0.31
          ],
          "hex": "#4b134f"
        },
        "position": 1
      }
    ],
    "$extensions": {
      "com.brandsweets": {
        "kind": "linear",
        "css": "linear-gradient(90deg in oklab, #c94b4b 0%, #4b134f 100%)",
        "interpolation": "oklab",
        "angle": 90,
        "name": "Bighead",
        "contrast": {
          "white": {
            "ratio": 4.574,
            "at": 0,
            "passesAA": true,
            "passesAALarge": true
          },
          "black": {
            "ratio": 1.505,
            "at": 1,
            "passesAA": false,
            "passesAALarge": false
          },
          "suggestedInk": "#ffffff"
        }
      }
    },
    "$description": "Bighead (uiGradients, MIT), rendered in OKLab."
  }
}

Tagged

More red gradients

mcpConnect your agent to the gradient engine
live endpoint

Point any MCP client at the shared gradients endpoint and your agent gets the same engine as this page — make_gradient returns CSS with the interpolation space, Tailwind v4, SVG, a PNG URL, a DTCG token and the contrast report in one call; brand_gradients derives the whole contact sheet from a brand or a palette. Read-only, no key. Every gradient is a /gradients/new/… link: open it, refine, paste it back.

endpointhttps://mcp.brandsweets.com/gradients/mcp
claude mcp add --transport http brandsweets-gradients https://mcp.brandsweets.com/gradients/mcp
try this prompt

take the Bighead gradient (#c94b4b, #4b134f), re-interpolate it in oklch, and tell me the worst-case contrast for white text

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: gradients.md · From uiGradients (MIT) — licences